on ubuntu 14.04 and debian jessie arm-none-eabi-g++ produces different binary

Difference begin in function findslot if this helps

Makefile:

TARGET = testservo
OPTIMIZATION = s

CROSS = arm-none-eabi-
CC = $(CROSS)gcc
CXX = $(CROSS)g++
LD = $(CROSS)ld
AR = $(CROSS)ar
AS = $(CROSS)gcc
GASP = $(CROSS)gasp
NM = $(CROSS)nm
OBJCOPY = $(CROSS)objcopy
OBJDUMP = $(CROSS)objdump
RANLIB = $(CROSS)ranlib
STRIP = $(CROSS)strip
SIZE = $(CROSS)size
READELF = $(CROSS)readelf
MAKETXT = srec_cat
MKDIR = mkdir
CP = cp -p
RM = rm
MV = mv

MCU_NAME = STM32F103C8
MCU_FAMILY = STM32F10X_LD

MCU = -mcpu=cortex-m3 -mthumb
MCU_CC = $(MCU) -D__thumb2__=1 -mtune=cortex-m3 -msoft-float -mapcs-frame

BUILD_DIR := build
SRC_DIR := src
#LD_SCRIPT := $(MCU_NAME).S

DEFINE := $(MCU_FAMILY) $(MCU_NAME) HSE_VALUE=8000000 USE_$(MCU_FAMILY) USE_STDPERIPH_DRIVER

SPL_DIR := STM32F10x_StdPeriph_Driver
CMSIS_DIR := CMSIS
USB_DIR := STM32_USB-FS-Device_Driver
SPL_SRC := $(wildcard $(SPL_DIR)/src/*.c)
SPL_INC := $(SPL_DIR)/inc
CMSIS_SRC := $(wildcard $(CMSIS_DIR)/Device/ST/STM32F10x/Source/Templates/*.c)
CMSIS_SRCS := $(CMSIS_DIR)/Device/ST/STM32F10x/Source/Templates/gcc_ride7/startup_stm32f10x_ld.s
CMSIS_INC := $(CMSIS_DIR)/Device/ST/STM32F10x/Include
CMSIS_INC += $(CMSIS_DIR)/Include
CMSIS_INC += $(CMSIS_DIR)/RTOS
USB_SRC := $(wildcard $(USB_DIR)/src/*.c)
USB_INC := $(USB_DIR)/inc
OS_DIR := FreeRTOS/Source
OS_SRC := $(wildcard $(OS_DIR)/*.c)
OS_SRC += $(wildcard $(OS_DIR)/portable/GCC/ARM_CM3/*.c)
OS_SRC += $(OS_DIR)/portable/MemMang/heap_4.c
OS_INC := $(OS_DIR)/include
OS_INC += $(OS_DIR)/portable/GCC/ARM_CM3

#STL_DIR := uClibc++-0.2.4
#STL_INC := $(STL_DIR)/include
#STL_SRC := $(wildcard $(STL_DIR)/src/*.cpp)
#STL_SRC += $(wildcard $(STL_DIR)/src/abi/*.cpp)

#STL_DIR := stl
#STL_INC := $(STL_DIR)
#STL_INC += $(STL_DIR)/include
#STL_INC += $(STL_DIR)/include/stl
#STL_INC += $(STL_DIR)/string
#STL_SRC := $(wildcard $(STL_DIR)/src/*.cpp)

STL_SRC :=
STL_INC :=

FW_SRC := $(wildcard $(SRC_DIR)/*.c)
FW_SRCXX := $(wildcard $(SRC_DIR)/*.cc)
HEADERS := $(wildcard $(SRC_DIR)/*.h*)
FW_INC := $(SRC_DIR)

SRC_EXCL :=
#comment next line to wipe out libc++ and use gcc for linking.
#SRC_EXCL += $(SRC_DIR)/supc++.cc
SRC_EXCL +=

SRC_C := $(SPL_SRC) $(USB_SRC) $(CMSIS_SRC) $(OS_SRC) $(FW_SRC)
SRC_S := $(CMSIS_SRCS)
SRC_CXX := $(FW_SRCXX) $(STL_SRC)
INCLUDE_FOLDERS = $(SPL_INC) $(USB_INC) $(CMSIS_INC) $(OS_INC) $(FW_INC) $(STL_INC)
SRC_C := $(filter-out $(SRC_EXCL),$(SRC_C))
SRC_CXX := $(filter-out $(SRC_EXCL),$(SRC_CXX))

SRC_CPPXX := $(filter %.cpp,$(SRC_CXX))
SRC_CCXX := $(filter %.cc,$(SRC_CXX))
OBJ := $(SRC_CPPXX:%.cpp=%.o) $(SRC_CCXX:%.cc=%.o) $(SRC_C:%.c=%.o) $(SRC_S:%.s=%.o)
OBJ := $(OBJ:%=$(BUILD_DIR)/%)
INCLUDES := $(INCLUDE_FOLDERS:%=-I%)
DEFINES := $(DEFINE:%=-D%)

CC_FLAGS = -g -ggdb $(INCLUDES) -I. -O$(OPTIMIZATION) -Wall -std=gnu99 -c -fmessage-length=0 $(MCU_CC) -fdata-sections -ffunction-sections -fno-hosted -fno-builtin -nostdlib -nodefaultlibs -fno-strict-aliasing
CXX_FLAGS = -g -ggdb $(INCLUDES) -I. -O$(OPTIMIZATION) -Wall -std=gnu++14 -c -fmessage-length=0 $(MCU_CC) -fdata-sections -ffunction-sections -fno-builtin -nostdlib -nodefaultlibs -fno-strict-aliasing -fno-rtti
AS_FLAGS = $(MCU)
#no semihosting
#LD_SYS_LIBS = -lm -lc -lgcc -lnosys
#LD_FLAGS = -Xlinke...

All .o files produced in ubuntu and debian are identical.
So I suppose that matter is in the linker.
But how can I figure it out???

For Debian, do you use the Ubuntu toolchain or the one in the Debian archive? If you are unsure, please show us the output of:

apt-cache policy $(dpkg-query -S /usr/bin/arm-none-eabi-gcc | cut -d ':' -f 1)

Best regards

I use arm-none-eabi-gcc 5-2015-q4-major
unpacked into /opt/
I have instaled libc6-i386 because arm-none-eabi-gcc 5-2015-q4-major
which I get from here is for i386 while my debian and ubuntu are x64.

dpkg-query -S /opt/gcc-arm-none-eabi/bin/arm-none-eabi-gcc | cut -d ":" -f 1
dpkg-query: no path found matching pattern /opt/gcc-arm-none-eabi/bin/arm-none-eabi-gcc
(because it is not installed via apt system)

14.03.2016, 12:41, "Thomas Preud'homme" <email address hidden>:
> For Debian, do you use the Ubuntu toolchain or the one in the Debian
> archive? If you are unsure, please show us the output of:
>
> apt-cache policy $(dpkg-query -S /usr/bin/arm-none-eabi-gcc | cut -d ':'
> -f 1)
>
> Best regards
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1556257
>
> Title:
>   on ubuntu 14.04 and debian jessie arm-none-eabi-g++ produces
>   different binary
>
> Status in GCC ARM Embedded:
>   New
>
> Bug description:
>   I have installed 5-2015-q4-major on both ubuntu 14.04 and debian jessie.
>   Both systems are 64 bit with i386 support.
>   On ubuntu I can compile c++ file which uses std::list into binary that runs on stm32f103c8t6 as expected.
>   If I compile exactly the same project on debian jessie, the binary hangs in WWDG_IRQHandler just inside std::list object initialization.
>
>   #0 0x08001898 in WWDG_IRQHandler ()
>   #1 <signal handler called>
>   #2 std::__cxx11::_List_base<lk::led*, std::allocator<lk::led*> >::_M_inc_size (this=<optimized out>, __n=1)
>       at /opt/gcc-arm-none-eabi-5_2-2015q4/arm-none-eabi/include/c++/5.2.1/bits/stl_list.h:363
>   #3 std::__cxx11::list<lk::led*, std::allocator<lk::led*> >::_M_insert<lk::led*>(std::_List_iterator<lk::led*>, lk::led*&&) (__position=..., this=<optimized out>)
>       at /opt/gcc-arm-none-eabi-5_2-2015q4/arm-none-eabi/include/c++/5.2.1/bits/stl_list.h:1765
>   #4 std::__cxx11::list<lk::led*, std::allocator<lk::led*> >::push_back(lk::led*&&) (__x=<optimized out>, this=<optimized out>)
>       at /opt/gcc-arm-none-eabi-5_2-2015q4/arm-none-eabi/include/c++/5.2.1/bits/stl_list.h:1094
>   #5 lk::led::led (pin_num=13, port=<optimized out>, this=0x20000a1c <led0>) at ./src/led.hh:31
>   #6 __static_initialization_and_destruction_0 (__initialize_p=1, __priority=65535) at ./src/main.cc:16
>   #7 _GLOBAL__sub_I_thread_led () at ./src/main.cc:60
>   #8 0x08002d2a in __libc_init_array ()
>   #9 0x08000266 in _start ()
>
>   I compile with Makefile.
>   I figured out that binaries have the same size but different content.
>   If I compile another project in pure C, the binaries are identical.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/gcc-arm-embedded/+bug/1556257/+subscriptions

I use arm-none-eabi-gcc 5-2015-q4-major
unpacked into /opt/
I have instaled libc6-i386 because arm-none-eabi-gcc 5-2015-q4-major
which I get from here is for i386 while my debian and ubuntu are x64.

dpkg-query -S /opt/gcc-arm-none-eabi/bin/arm-none-eabi-gcc | cut -d ":" -f 1
dpkg-query: no path found matching pattern /opt/gcc-arm-none-eabi/bin/arm-none-eabi-gcc
(because it is not installed via apt system)